Equalizer circuit for a repeater

Wave transmission lines and networks – Coupling networks – Equalizers

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

330304, 333214, H03H 703

Patent

active

044244991

ABSTRACT:
An electronic hybrid voice frequency repeater having a pair of term sets interconnected by a four-wire circuit for separating the two directions of signal transmission and amplifying each direction separately. Each term set couples the repeater's four-wire circuit to a two-wire line and has a differential current driver for driving the two-wire line and a differential amplifier connected in a feedback loop for sensing the differential signal voltage across the two-wire line, to drive the current driver and to feed an incoming differential signal on the two-wire line to the repeater's four-wire circuit while nulling signals arriving at the term set from the four-wire circuit to prevent them from returning to the four-wire circuit. Other features disclosed include a low frequency clamping circuit, an adjustable-gain amplifier, and an equalizer for non-loaded cable.

REFERENCES:
patent: 1938256 (1933-12-01), Jacobs
patent: 2737629 (1956-03-01), Beerbaum et al.
patent: 3715680 (1973-02-01), Fleischer
patent: 4016483 (1977-04-01), Rudin
patent: 4118700 (1978-10-01), Lenihan

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Equalizer circuit for a repeater does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Equalizer circuit for a repeater, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Equalizer circuit for a repeater will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1033688

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.